"To whom it concerns,
Dr. Aleksandra M. Moskalenko is well-known Ukrainian scientist. She has a very good knowledge in the field of economics and social sciences. She always gave extremely valuable contributions in discussions at the conferences. She demonstrated, that she is able to apply here profound statistical and economical knowledge to various problems of practical relevance editing the book "Productivity of contemporary economies theory and evidence." Dr. Aleksandra M. Moskalenko is a passionate and ambitious scholar. Because of her very friendly and communicative attitude and her creativity, she will contribute to the success of every research group she is joining."